initial

.babelrc

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+{
+	"presets": [
+		"latest",
+		"stage-0"
+	],
+	"compact": true
+}

.gitignore

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+# Created by .ignore support plugin (hsz.mobi)
+### JetBrains template
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff:
+.idea/*
+
+## File-based project format:
+*.iws
+
+## Plugin-specific files:
+
+# IntelliJ
+/out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+### Node template
+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules
+jspm_packages
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity

.npmignore

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+node_modules
+lib

README.md

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+# ducks-helpers
+Utils for ducks in redux
+
+Api is not stable. You can use some ideas in your projects.
+`constants()` - generates constants, however if `~` sign presents at the beginning then extra sufixes will be generated
+
+```
+import {constants} from 'ducks-helpers'
+```
+
+```
+export const TYPE = constants('module-name/namespace', [
+	'~GET_NOTE', //it will create GET_NOTE, GET_NOTE_LOADING, ...
+	'NORMAL_ACTION' //it will create only itself
+])
+```

index.js

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+import { createAction } from 'redux-actions';
+
+/* --------------------------example--------------------------------
+export const TYPE = constants('module-name/namespace', [
+	'~GET_NOTE', //it will create GET_NOTE, GET_NOTE_LOADING, ...
+	'NORMAL_ACTION' //it will create only itself
+])
+------------------------------------------------------------------*/
+
+export function constants(namespace = '', types){
+    const _SUFFIXES = [
+        'LOADING',
+        'PENDING',
+        'SUCCESS',
+        'ERROR',
+        'FAILED',
+        'CANCELED'
+    ]
+
+    if(arguments.length === 1 || Array.isArray(namespace)){
+        types = namespace;
+        namespace = '';
+    }
+
+    if(!Array.isArray(types)){
+        throw 'types should be an array';
+    }
+
+    return types.reduce((obj,name)=>{
+        if(name.indexOf('~') === 0){
+            let type =  name.slice(1);
+
+            obj[type] = (namespace ? `${namespace}/` : '') + `${type}`;
+
+            _SUFFIXES.forEach(suf=>{
+                obj[type + '_' + suf] = (namespace ? `${namespace}/` : '') + `${type}_${suf}`
+            })
+        }else{
+            obj[name] = name;
+        }
+
+        return obj;
+    },{})
+}
+
+//HELPERS
+export function loading(state, action){
+    return { ...state, error: null, loading: true }
+}
+
+export function success(state, action){
+    return { ...state, payload: action.payload, error: null, loading: false }
+}
+
+export function error(state, action){
+    let error = action.payload && action.payload
+    return { ...state, payload: [], error, loading: false }
+}
+
+
+function camelize(str) {
+    return str.toLowerCase()
+        .split('_')
+        .reduce((output,word)=>{
+            if(!output){
+                output = word;
+            }else{
+                output += word.charAt(0).toUpperCase() + word.slice(1);
+            }
+
+            return output;
+        });
+}
+
+function isObject(obj) {
+    return obj === Object(obj);
+}
+
+export function actions(TYPES){
+    if(!isObject(TYPES)){
+        throw 'TYPES should be an object'
+    }
+
+    return Object.keys(TYPES).reduce((actions,TYPE)=>{
+        actions[camelize(TYPE)] = createAction(TYPE);
+
+        return actions;
+    },{})
+}

package.json

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+{
+  "name": "ducks-helpers",
+  "version": "1.0.0",
+  "description": "Utils for redux",
+  "main": "lib/index.js",
+  "files": [
+    "lib"
+  ],
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "build": "babel index.js --out-dir lib"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/Darmikon/ducks-helpers.git"
+  },
+  "keywords": [
+    "redux",
+    "react"
+  ],
+  "author": "Roman Yudin",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/Darmikon/ducks-helpers/issues"
+  },
+  "homepage": "https://github.com/Darmikon/ducks-helpers#readme",
+  "devDependencies": {
+    "babel-cli": "^6.18.0",
+    "babel-preset-es2015": "^6.18.0",
+    "babel-preset-latest": "^6.16.0",
+    "babel-preset-stage-0": "^6.16.0"
+  },
+  "dependencies": {
+    "redux-actions": "^1.2.0"
+  }
+}